Chosen answer:Sometimes. A suppressor, known commonly as a silencer, works by reducing the sound of firing by manipulating the escaping propellant gas, and sometimes by reducing the velocity of the bullet. It all depends on the type of suppressor that is used.

At the very beginning of the movie, when Kim Basinger is in the bedroom and walking towards the mirror, the movements of her reflection do not match her movements. She stops moving and her reflection continues to move.